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DE69318370D1 - Verfahren zur hierarchischen Kodierung/Dekodierung eines digitalen Signals, und entsprechendes System zur Anwendung bei digitalem Fernsehen - Google Patents

Verfahren zur hierarchischen Kodierung/Dekodierung eines digitalen Signals, und entsprechendes System zur Anwendung bei digitalem Fernsehen

Info

Publication number
DE69318370D1
DE69318370D1 DE69318370T DE69318370T DE69318370D1 DE 69318370 D1 DE69318370 D1 DE 69318370D1 DE 69318370 T DE69318370 T DE 69318370T DE 69318370 T DE69318370 T DE 69318370T DE 69318370 D1 DE69318370 D1 DE 69318370D1
Authority
DE
Germany
Prior art keywords
decoding
corresponding system
hierarchical coding
digital signal
digital
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69318370T
Other languages
English (en)
Other versions
DE69318370T2 (de
Inventor
Pierre Combelles
Damien Castelain
Gabriel Degoulet
Marc Riviere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telediffusion de France ets Public de Diffusion
Orange SA
Original Assignee
Telediffusion de France ets Public de Diffusion
France Telecom SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telediffusion de France ets Public de Diffusion, France Telecom SA filed Critical Telediffusion de France ets Public de Diffusion
Publication of DE69318370D1 publication Critical patent/DE69318370D1/de
Application granted granted Critical
Publication of DE69318370T2 publication Critical patent/DE69318370T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
    • H04L27/3427—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation
    • H04L27/3433—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation using an underlying square constellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Error Detection And Correction (AREA)
DE1993618370 1992-10-22 1993-10-20 Verfahren zur hierarchischen Kodierung/Dekodierung eines digitalen Signals, und entsprechendes System zur Anwendung bei digitalem Fernsehen Expired - Lifetime DE69318370T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9212663A FR2697395B1 (fr) 1992-10-22 1992-10-22 Procédé de codage-décodage hiérarchique d'un signal numérique, et système correspondant utilisés en télévision numérique.

Publications (2)

Publication Number Publication Date
DE69318370D1 true DE69318370D1 (de) 1998-06-10
DE69318370T2 DE69318370T2 (de) 1998-09-03

Family

ID=9434794

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1993618370 Expired - Lifetime DE69318370T2 (de) 1992-10-22 1993-10-20 Verfahren zur hierarchischen Kodierung/Dekodierung eines digitalen Signals, und entsprechendes System zur Anwendung bei digitalem Fernsehen

Country Status (3)

Country Link
EP (1) EP0594505B1 (de)
DE (1) DE69318370T2 (de)
FR (1) FR2697395B1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5563915A (en) * 1994-11-30 1996-10-08 Thomson Consumer Electronics Inc. Data deinterleaver in a digital television signal decoding system
US6035568A (en) 1996-12-11 2000-03-14 Pharmagraphics (Midwest), L.L.C. Primary label with removable self-adhesive labels
JP4649087B2 (ja) * 1999-11-23 2011-03-09 トムソン ライセンシング 階層ｑａｍ伝送方式のための誤り検出／訂正符号化
US7149259B1 (en) 1999-11-23 2006-12-12 Thomson Licensing Center of gravity control for hierarchical QAM transmission systems
WO2001039453A1 (en) * 1999-11-23 2001-05-31 Thomson Licensing S.A. Center of gravity control for hierarchical qam transmission systems
JP4540284B2 (ja) * 1999-11-23 2010-09-08 トムソン ライセンシング 変化するグループ化係数を有するヒエラキカルｑａｍ伝送システム
US7073116B1 (en) 1999-11-23 2006-07-04 Thomson Licensing Error detection/correction coding for hierarchical QAM transmission systems
US7215713B2 (en) 2003-11-26 2007-05-08 Delphi Technologies, Inc. Method to minimize compatibility error in hierarchical modulation
US7230992B2 (en) 2003-11-26 2007-06-12 Delphi Technologies, Inc. Method to create hierarchical modulation in OFDM
US7280613B2 (en) 2003-11-26 2007-10-09 Delphi Technologies, Inc. Method to inject hierarchical data onto single carrier stream
US20050113040A1 (en) 2003-11-26 2005-05-26 Walker Glenn A. Method to minimize compatibility error in hierarchical modulation using variable phase
US7386056B2 (en) 2003-11-26 2008-06-10 Delphi Technologies, Inc. Method to increase performance of secondary data in a hierarchical modulation scheme
US7230998B2 (en) 2003-11-26 2007-06-12 Delphi Technologies, Inc. Method to increase performance of secondary data in a hierarchical modulation scheme
US7499696B2 (en) 2003-11-26 2009-03-03 Delphi Technologies, Inc. Method to optimize hierarchical modulation for a diversity system
FR2865872B1 (fr) * 2004-01-30 2006-04-28 Wavecom Procede de reception multi modulation s'appliquant a la demodulation de signaux issus de modulations dont les symboles sont inclus dans une constellation principale
US7830983B2 (en) 2005-03-01 2010-11-09 Delphi Technologies, Inc. Method to minimize degradation in a D-MPSK hierarchical modulation system
US8379769B2 (en) 2010-03-10 2013-02-19 Delphi Technologies, Inc. Communication system utilizing a hierarchically modulated signal and method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495619A (en) * 1981-10-23 1985-01-22 At&T Bell Laboratories Transmitter and receivers using resource sharing and coding for increased capacity
US4534040A (en) * 1983-01-04 1985-08-06 At&T Information Systems Method and apparatus for coding a binary signal
US5105442A (en) * 1990-11-07 1992-04-14 At&T Bell Laboratories Coded modulation with unequal error protection
US5164963A (en) * 1990-11-07 1992-11-17 At&T Bell Laboratories Coding for digital transmission
US5214656A (en) * 1990-12-13 1993-05-25 At&T Bell Laboratories Multiplexed coded modulation with unequal error protection
AU656972B2 (en) * 1991-06-03 1995-02-23 British Telecommunications Public Limited Company QAM system in which the constellation is modified in accordance with channel quality
US5237292A (en) * 1992-07-01 1993-08-17 Space Systems/Loral Quadrature amplitude modulation system with compensation for transmission system characteristics

Also Published As

Publication number Publication date
FR2697395B1 (fr) 1994-12-30
EP0594505B1 (de) 1998-05-06
DE69318370T2 (de) 1998-09-03
EP0594505A1 (de) 1994-04-27
FR2697395A1 (fr) 1994-04-29

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